Audio Track fails to publish on iOS

[philbot9]

Describe the bug

Publishing an Audio Track fails. The problem seems to originate in livekit-client when trying to access the userAgent in the getBrowser util function.

https://github.com/livekit/client-sdk-js/blob/db162f3effe98bbdb076c856e06b794856174afc/src/utils/browserParser.ts#L25

I'm not sure if this is a problem with the ReactNative SDK or JS SDK. Let me know if this Issue should be posted over in the client-sdk-js repo.

To Reproduce

Steps to reproduce the behavior:

  <LiveKitRoom
      serverUrl={props.serverUrl}
      token={props.token}
      connect={true}
      audio={true}
      video={false}
      onConnected={() => console.log('LiveKitRoom connected')}
      onDisconnected={() => console.log('LiveKitRoom disconnected')}
      onError={(error: Error) => console.log('LiveKitRoom error', error)}
      onEncryptionError={(error: Error) =>
        console.log('LiveKitRoom encryptionError', error)
      }
      onMediaDeviceFailure={(error: Error) =>
        console.log('LiveKitRoom mediaDeviceFailure', error)
      }
    >
      <RoomView />
    </LiveKitRoom>

Expected behavior

The Audio track should be published.

Screenshots

Device Info:

• Device: iPhone SE 3rdGen
• OS: iOS 18.3.2

Dependencies Info (please reference your package-lock.json or yarn.lock file, not just your package.json):

• @livekit/react-native: 2.6.5
• livekit-client: 2.9.8
• react-native-webrtc: 125.0.9

Additional context Logfile: console-1742648678382.log